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Message-ID: <4c02050c4e95e4cb8cc04282695f8404@codeaurora.org>
Date: Fri, 15 Jan 2021 12:15:26 -0800
From: jjohnson@...eaurora.org
To: Masahiro Yamada <masahiroy@...nel.org>
Cc: Linux Kbuild mailing list <linux-kbuild@...r.kernel.org>,
Prasad Sodagudi <psodagud@...cinc.com>, eberman@...cinc.com,
Nick Desaulniers <ndesaulniers@...gle.com>,
Mahesh Kumar Kalikot Veetil <mkalikot@...eaurora.org>,
Michal Marek <michal.lkml@...kovi.net>,
Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v2 2/2] kbuild: handle excessively long argument lists
On 2021-01-14 17:12, Masahiro Yamada wrote:
> On Fri, Jan 15, 2021 at 6:50 AM Jeff Johnson <jjohnson@...eaurora.org>
> wrote:
>>
>> From: Mahesh Kumar Kalikot Veetil <mkalikot@...eaurora.org>
>>
>> Modules with a large number of compilation units may be
>> exceeding AR and LD command argument list. Handle this gracefully by
>> writing the long argument list in a file. The command line options
>> read from file are inserted in place of the original @file option.
>>
>> The usage is well documented at
>> https://www.gnu.org/software/make/manual/html_node/File-Function.html
>>
>> Signed-off-by: Mahesh Kumar Kalikot Veetil <mkalikot@...eaurora.org>
>> Signed-off-by: Jeff Johnson <jjohnson@...eaurora.org>
>> ---
>
>
>
>
> First, is this a real problem?
> If so, which module is exceeding the command line limit?
On 2021-01-14 17:12, Masahiro Yamada wrote:
> First, is this a real problem?
> If so, which module is exceeding the command line limit?
Mahesh & I appreciate all of the feedback.
The issue is seen in an Android environment with an out-of-tree
driver. The combination of long path names and a large number
of source files is leading to the issue.
Since Mahesh & I are not Kbuild gurus, is there an alternative
solution to this issue?
Jeff
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